484 THE LAND AND FRESII-WATER MOLLUSCA OF NEW ZEALAND, ADDITIONS AND EMENDATIONS TO THE KEFERENCE LIST OF THE LAND AND FRESH-WATER MOLLUSCA OF NEW ZEALAND. By Henry Suter, Christchurch, New Zealand. (Communicated by C. Hedley, F.L.S.) (Plates xxn. XXIII.) In the above-mentioned list a number of new species were enumerated, the descriptions of which were promised for the next volume of the Proceedings. These are given herewith, accom-panied by figures of the shells, and, where it was possible, of the dentition also. There were a few of our shells whose identification seemed to me more or less doubtful, and these I forwarded to the respective museums where the type specimens aie preserved, and the gentlemen in charge most obligingly undertook the verification of the specimens, for w^hich kindness my best thanks are due to them. I now wish to place all the reports on record, as they are no doubt of the greatest importance. Lagochilus Hedleyi, n.sp. (PL xxn. figs. \-\d.) Shell small, turbinate, perforated, rufous or pale horny, not shining, rather thin, with radiate white membranaceous plaits, wliich are close together on the penultimate whorl, but are gradually becoming more distant on a[)proaching the aperture, where there are about 9 plaits per millm. Between the plaits the epidermis is faintly spirally striated, crossed by a few growth-lines ; the spiral striae are very close and can only be seen with a good magnifying glass. Spire conical, nearly as high as broad ; apex subacute, smooth. Whorls 5, rounded, the first four slowly, the last rapidly increasing. Suture deep ; periphery rounded,
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